Non-contacting residual stress decay detecting using alternating current stress measurement

K Chen, F. P Brennan, W.D Dover

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Recent work conducted at the Non-Destructive Evaluation Centre of University College London on the residual stress decay detection using the new alternating current stress measurement (ACSM) technology is presented. Flat bar mild steel specimens were used in the experimental study. An equal biaxial compressive residual stress field was introduced into the specimen surfaces by shot peening. The specimens were then subjected to a constant-amplitude cyclic load on a fatigue-testing machine. Under this loading situation, hole-drilling tests indicated that only the residual stress component in the cyclic loading direction had significantly relaxed. Test results showed that this relaxation could be detected by using the existing ACSM system. Further theoretical and experimental efforts are needed to make this technology available for a wide range of practical applications.

LanguageEnglish
Pages227-233
Number of pages7
JournalJournal of Strain Analysis for Engineering Design
Volume35
Issue number4
DOIs
Publication statusPublished - 31 May 2000

Fingerprint

Stress measurement
Residual Stress
Electric current measurement
Residual stresses
Decay
Shot Peening
Shot peening
Cyclic Loading
Cyclic loads
Fatigue testing
Biaxial
Drilling
Stress Field
Measurement System
Compressive stress
Fatigue
Carbon steel
Experimental Study
Steel
Testing

Keywords

  • alternating current stress measurement (ACSM)
  • residual stress decay
  • fatigue
  • hole drilling

Cite this

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Non-contacting residual stress decay detecting using alternating current stress measurement. / Chen, K; Brennan, F. P; Dover, W.D.

In: Journal of Strain Analysis for Engineering Design, Vol. 35, No. 4, 31.05.2000, p. 227-233.

Research output: Contribution to journalArticle

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